* {
    margin: 0;
    padding: 0;
}

body {
    width: 100vw;
    height: 100vh;
    background-color: #51708f;
    display: flex;
    justify-content: center;
    align-items: center;
}

.message {
    width: 400px;
    height: 740px;
    background-color: #ffffff;
    margin-right: 20px;
    overflow: scroll;
}

.message div {
    width: 100%;
    height: 30px;
    line-height: 30px;
    vertical-align: middle;
    font-weight: bold;
    font-size: 24px;
    margin-bottom: 20px;
}

.message div:nth-child(1) {
    color: #ff0000;
}

.message div span {
    color: #00b894;
}

#myCanvas {
    box-sizing: border-box;
    border: 1px solid black;
    background-color: #ffeeba;
}